US5780534A - Flameproofed polyester molding composition - Google Patents
Flameproofed polyester molding composition Download PDFInfo
- Publication number
- US5780534A US5780534A US08/780,345 US78034597A US5780534A US 5780534 A US5780534 A US 5780534A US 78034597 A US78034597 A US 78034597A US 5780534 A US5780534 A US 5780534A
- Authority
- US
- United States
- Prior art keywords
- molding composition
- polyester molding
- phosphinic acid
- salt
- formula
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 229920000728 polyester Polymers 0.000 title claims abstract description 30
- 239000000203 mixture Substances 0.000 title claims description 32
- 238000000465 moulding Methods 0.000 title claims description 18
- -1 polyethylene terephthalate Polymers 0.000 claims abstract description 23
- 229920001707 polybutylene terephthalate Polymers 0.000 claims abstract description 13
- 159000000007 calcium salts Chemical class 0.000 claims abstract description 10
- 239000003063 flame retardant Substances 0.000 claims abstract description 10
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229920000139 polyethylene terephthalate Polymers 0.000 claims abstract description 7
- 239000005020 polyethylene terephthalate Substances 0.000 claims abstract description 7
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims abstract description 6
- ACVYVLVWPXVTIT-UHFFFAOYSA-N phosphinic acid Chemical class O[PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-N 0.000 claims description 25
- 238000002360 preparation method Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical group [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims 4
- 229910001424 calcium ion Inorganic materials 0.000 claims 4
- 239000003795 chemical substances by application Substances 0.000 claims 3
- 239000004698 Polyethylene Substances 0.000 claims 1
- 229920000573 polyethylene Polymers 0.000 claims 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 claims 1
- 239000002253 acid Substances 0.000 abstract description 14
- 150000007513 acids Chemical class 0.000 abstract description 9
- 229920000642 polymer Polymers 0.000 description 22
- 150000001875 compounds Chemical class 0.000 description 11
- 150000003839 salts Chemical class 0.000 description 11
- NXHKQBCTZHECQF-UHFFFAOYSA-N ethyl(methyl)phosphinic acid Chemical compound CCP(C)(O)=O NXHKQBCTZHECQF-UHFFFAOYSA-N 0.000 description 10
- 239000003365 glass fiber Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000000654 additive Substances 0.000 description 5
- 239000011575 calcium Substances 0.000 description 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000000292 calcium oxide Substances 0.000 description 4
- 235000012255 calcium oxide Nutrition 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 238000009472 formulation Methods 0.000 description 4
- SZTJCIYEOQYVED-UHFFFAOYSA-N methyl(propyl)phosphinic acid Chemical compound CCCP(C)(O)=O SZTJCIYEOQYVED-UHFFFAOYSA-N 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000001291 vacuum drying Methods 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 3
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 3
- 238000013329 compounding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- BCDIWLCKOCHCIH-UHFFFAOYSA-N methylphosphinic acid Chemical compound CP(O)=O BCDIWLCKOCHCIH-UHFFFAOYSA-N 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 229920002647 polyamide Polymers 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- ZWVMLYRJXORSEP-LURJTMIESA-N (2s)-hexane-1,2,6-triol Chemical compound OCCCC[C@H](O)CO ZWVMLYRJXORSEP-LURJTMIESA-N 0.000 description 1
- 125000006832 (C1-C10) alkylene group Chemical group 0.000 description 1
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical group CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 1
- STKWTLFLUDGNHE-UHFFFAOYSA-N C.CP(O)=O.CP(O)=O Chemical compound C.CP(O)=O.CP(O)=O STKWTLFLUDGNHE-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical group [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 description 1
- 101100386054 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) CYS3 gene Proteins 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- IYABWNGZIDDRAK-UHFFFAOYSA-N allene Chemical group C=C=C IYABWNGZIDDRAK-UHFFFAOYSA-N 0.000 description 1
- ZJKCITHLCNCAHA-UHFFFAOYSA-K aluminum dioxidophosphanium Chemical class [Al+3].[O-][PH2]=O.[O-][PH2]=O.[O-][PH2]=O ZJKCITHLCNCAHA-UHFFFAOYSA-K 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 125000000732 arylene group Chemical group 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- PSLLHWNSDFLVDT-UHFFFAOYSA-L calcium dioxidophosphanium Chemical class [Ca+2].[O-][PH2]=O.[O-][PH2]=O PSLLHWNSDFLVDT-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 description 1
- KTLIMPGQZDZPSB-UHFFFAOYSA-N diethylphosphinic acid Chemical compound CCP(O)(=O)CC KTLIMPGQZDZPSB-UHFFFAOYSA-N 0.000 description 1
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 description 1
- GOJNABIZVJCYFL-UHFFFAOYSA-N dimethylphosphinic acid Chemical compound CP(C)(O)=O GOJNABIZVJCYFL-UHFFFAOYSA-N 0.000 description 1
- BEQVQKJCLJBTKZ-UHFFFAOYSA-N diphenylphosphinic acid Chemical compound C=1C=CC=CC=1P(=O)(O)C1=CC=CC=C1 BEQVQKJCLJBTKZ-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- RMJCJLHZCBFPDN-UHFFFAOYSA-N methyl(phenyl)phosphinic acid Chemical compound CP(O)(=O)C1=CC=CC=C1 RMJCJLHZCBFPDN-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004957 naphthylene group Chemical group 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 description 1
- ACVYVLVWPXVTIT-UHFFFAOYSA-M phosphinate Chemical compound [O-][PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-M 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229920006149 polyester-amide block copolymer Polymers 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- RPACBEVZENYWOL-XFULWGLBSA-M sodium;(2r)-2-[6-(4-chlorophenoxy)hexyl]oxirane-2-carboxylate Chemical compound [Na+].C=1C=C(Cl)C=CC=1OCCCCCC[C@]1(C(=O)[O-])CO1 RPACBEVZENYWOL-XFULWGLBSA-M 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 101150035983 str1 gene Proteins 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0091—Complexes with metal-heteroatom-bonds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/30—Phosphinic acids [R2P(=O)(OH)]; Thiophosphinic acids ; [R2P(=X1)(X2H) (X1, X2 are each independently O, S or Se)]
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/53—Phosphorus bound to oxygen bound to oxygen and to carbon only
- C08K5/5313—Phosphinic compounds, e.g. R2=P(:O)OR'
Definitions
- the invention relates to flameproofed polyester molding compositions which comprise calcium phosphinates or aluminum phosphinates.
- Polymers are often rendered flame-resistant by adding to these phosphorus-containing or halogen-containing compounds or mixtures thereof. Some polymers are processed at high temperatures, for example at 250° C. or higher temperatures. For this reason, many known flame retardants are not suitable for such uses, because they are too volatile or are not sufficiently heat-stable.
- Alkali metal salts of phosphinic acids are stable to heat and have already been proposed as flame-retardant additives for polyesters (DE-A1-2 252 258). They must be incorporated in amounts of up to 30% by weight, and sometimes have an adverse corrosion-promoting effect on the processing machines.
- Salts of phosphinic acids with an alkali metal or a metal of main group or sub-group 2 or 3 of the periodic table have furthermore been employed for the preparation of flame-resistant polyamide molding compositions, in particular the zinc salts (DE-A1-2 447 727).
- Thermoplastics of low flammability can also be prepared by using the phosphinic acid salts mentioned in combination with nitrogen bases, such as melamine, dicyandiamide or guanidine (DE-A1-28 27 867).
- the polymeric metal phosphinates are another large class of phosphinic acid salts. These are nonionic coordination complexes and are soluble in organic solvents. They are suitable as flameproofing components for halogenated aromatic polymers and for polyesters (U.S. Pat. No. 4,078,016; U.S. Pat. No. 4,180,495), polyamides (U.S. Pat. No. 4,208,321) and polyester/polyamides (U.S. Pat. No. 4,208,322).
- the generally difficult industrial preparation of these metal phosphinate polymers is a disadvantage.
- the invention thus relates to a polyester molding composition which comprises a phosphinic acid salt of the formula (I) and/or a diphosphinic acid salt of the formula (II) and/or polymers thereof ##STR1## in which R 1 and R 2 are C 1 -C 6 -alkyl, preferably C 1 -C 4 -alkyl, which is linear or branched, for example methyl, ethyl, n-propyl, iso-propyl, n-butyl, tert-butyl or n-pentyl; or phenyl;
- R 3 is C 1 -C 10 -alkylene which is linear or branched, for example methylene, ethylene, n-propylene, iso-propylene, n-butylene, tert-butylene, n-pentylene, n-octylene or n-dodecylene; arylene, for example phenylene or naphthylene; alkylarylene, for example methylphenylene, ethyl-phenylene, tert-butylphenylene, methylnaphthylene, ethylnaphthylene or tert-butylnaphthylene; arylalkylene, for example phenylmethylene, phenyl-ethylene, phenylpropylene or phenylbutylene;
- M is calcium or aluminum ions
- n 2 or 3;
- n 1 or 3;
- x is 1 or 2.
- Polyesters are polymers which contain recurring units bonded via an ester group in the polymer chain. Polyesters which can be employed according to the invention are described, for example, in "Ullmann's Encyclopedia of Industrial Chemistry, ed. Barbara Elvers, Volume A21, Chapter “Polyesters” (pages 227-251), VCH, Weinheim-Basel-Cambridge-New York 1992", to which reference is made.
- phosphinic acid salt means salts of phosphinic and diphosphinic acids and polymers thereof.
- phosphinic acid salts according to the invention which are prepared in an aqueous medium, are in general monomeric compounds. Polymeric phosphinic acid salts can also be formed under certain circumstances, depending on the preparation conditions.
- Suitable phosphinic acids as a constituent of the phosphinic acid salts according to the invention are, for example: dimethylphosphinic acid, ethylmethylphosphinic acid, diethylphosphinic acid, methyl-n-propylphosphinic acid, methane-di(methylphosphinic acid), ethane-1,2-di(methylphosphinic acid), hexane-1,6-di(methylphosphinic acid), benzene-1,4-di(methylphosphinic acid), methyl-phenylphosphinic acid and diphenylphosphinic acid.
- the salts of the phosphinic acids according to the invention can be prepared by known methods.
- the phosphinic acids are reacted here with metal carbonates, metal hydroxides or metal oxides in aqueous solution.
- the amount of phosphinic acid salt of the formula I to be added to the polymers or of the diphosphinic acid salt of the formula II can vary within wide limits. In general, 5 to 30% by weight, based on the polymer, is used. The optimum amount depends on the nature of the polymer and on the nature of the phosphinic acid salt employed, and can easily be determined by experiments.
- the phosphinic acid salts according to the invention can be used in various physical forms, depending on the nature of the polymer used and on the desired properties.
- the phosphinic acid salts can be ground to a finely divided form in order to achieve a better dispersion in the polymer. If desired, mixtures of different phosphinic acid salts can also be employed.
- the phosphinic acid salts according to the invention are heat-stable and neither decompose the polymers during processing nor influence the preparation process of the polyester molding composition.
- the phosphinic acid salts are not volatile under the preparation and processing conditions for polymers.
- the phosphinic acid salt can be incorporated into the polymer by mixing the two, subsequently melting the polymer in a compounding unit (for example a twin-screw extruder) and homogenizing the phosphinic acid salt in the polymer melt.
- the melt can be taken off as a strand, cooled and granulated.
- the phosphinic acid salt can also be metered directly into the compounding unit.
- the flame-retardant additive can also be added during the polycondensation.
- fillers and reinforcing substances such as glass fibers, glass beads or minerals, such as chalk, can also be added to the formulations.
- the products can comprise other additives, such as, for example, stabilizers, lubricants, colorants, nucleating agents or antistatics.
- the flame-resistant polyesters according to the invention are suitable for the production of shaped articles, films, filaments and fibers, for example by injection molding, extrusion or compression molding.
- the phosphorus-containing compounds were mixed with the polymer and incorporated on a commercially available twin-shaft compounder.
- glass-fiber-reinforced formulations glass fibers which are commercially conventional for polyesters were metered into the melt.
- the material temperatures during compounding were about 250° C. for polybutylene terephthalate (PBT) and about 270° C. for polyethylene terephthalate (PET).
- test specimens were produced on an injection molding machine in accordance with ISO 7792-2.
- the fire class UL 94 (Underwriter Laboratories) was determined on test specimens from each mixture which had a thickness of 1.2 mm, and the tear strength and elongation at break were determined in accordance with ISO 527.
- V-0 no afterflaming for longer than 10 seconds, total of the afterflame times of 10 flamings not greater than 50 seconds, no burning drops, no complete burnup of the specimen, no afterglowing of the specimens for longer than 30 seconds after the end of flaming
- V-1 no afterflaming for longer than 30 seconds after the end of flaming, total of the afterflame times of 10 flamings not greater than 250 seconds, no after-glowing of the specimens for longer than 60 seconds after the end of flaming, other criteria as for V-0
- ⁇ V-2 does not comply with fire class V-2.
- Example 2.1.1 The procedure was as for Example 2.1.1 with the aluminum salt of ethylmethylphosphinic acid (polymer: PBT).
- Example 2.4 shows the activity of the compounds claimed in nonreinforced PBT using the example of the calcium salt of ethylmethylphosphinic acid.
- Example 2.5 shows the activity of the compounds claimed in nonreinforced and reinforced PET using the example of the calcium salt of ethylmethylphosphinic acid.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/780,345 US5780534A (en) | 1994-08-31 | 1997-01-08 | Flameproofed polyester molding composition |
| US09/094,278 US6013707A (en) | 1994-08-31 | 1998-06-09 | Flameproofed polyester molding compositions |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4430932.5 | 1994-08-31 | ||
| DE4430932A DE4430932A1 (de) | 1994-08-31 | 1994-08-31 | Flammgeschützte Polyesterformmasse |
| US52072895A | 1995-08-29 | 1995-08-29 | |
| US08/780,345 US5780534A (en) | 1994-08-31 | 1997-01-08 | Flameproofed polyester molding composition |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US52072895A Continuation | 1994-08-31 | 1995-08-29 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US09/094,278 Continuation US6013707A (en) | 1994-08-31 | 1998-06-09 | Flameproofed polyester molding compositions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US5780534A true US5780534A (en) | 1998-07-14 |
Family
ID=6527028
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US08/780,345 Expired - Lifetime US5780534A (en) | 1994-08-31 | 1997-01-08 | Flameproofed polyester molding composition |
| US09/094,278 Expired - Lifetime US6013707A (en) | 1994-08-31 | 1998-06-09 | Flameproofed polyester molding compositions |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US09/094,278 Expired - Lifetime US6013707A (en) | 1994-08-31 | 1998-06-09 | Flameproofed polyester molding compositions |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US5780534A (de) |
| EP (2) | EP0941996A3 (de) |
| JP (1) | JP3434092B2 (de) |
| DE (2) | DE4430932A1 (de) |
Cited By (122)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5973194A (en) * | 1997-11-28 | 1999-10-26 | Clariant Gmbh | Process for preparing dialkylphosphinate salts |
| US6207736B1 (en) | 1997-08-08 | 2001-03-27 | Clariant Gmbh | Synergistic flameproofing combination for polymers |
| US6211402B1 (en) | 1996-07-22 | 2001-04-03 | Ticona Gmbh | Phosphinic acid aluminum salts |
| US6229044B1 (en) * | 1997-03-04 | 2001-05-08 | Ticona Gmbh Deutschland Kg | Alkyl-1-alkoxyethylphosphinous acid aluminum salts |
| US6242642B1 (en) | 1997-11-28 | 2001-06-05 | Clariant Gmbh | Process for preparing arylalphosphinic acids |
| US6252108B1 (en) | 1997-08-07 | 2001-06-26 | Ticona Gmbh | Method for producing aluminium salts of cyclic phosphinic acid |
| US6270560B1 (en) | 1997-03-04 | 2001-08-07 | Ticona Gmbh | Flameproof polymer moulding material |
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Also Published As
| Publication number | Publication date |
|---|---|
| JPH0873720A (ja) | 1996-03-19 |
| JP3434092B2 (ja) | 2003-08-04 |
| EP0699708A2 (de) | 1996-03-06 |
| EP0699708A3 (de) | 1996-07-17 |
| EP0699708B1 (de) | 2000-04-19 |
| EP0941996A3 (de) | 1999-10-13 |
| EP0941996A2 (de) | 1999-09-15 |
| DE59508190D1 (de) | 2000-05-25 |
| DE4430932A1 (de) | 1996-03-07 |
| US6013707A (en) | 2000-01-11 |
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